So you fixed the bug with card drops from event monsters but didn't even bother announcing that fix is ready here or in the game news section and did not provide any compensation to the players who lost about 6 hours of event time because of you? Well done!
So, how about at the very least extending the event by 6 hours? And don't forget that while the bug was active the old players at least were able to collect Adored Ones cards from event monsters while new players who didn't have Adored Ones set unlocked were left with nothing.